Common signs and symptoms of PCOS include the following: 1  Menstrual disorders: PCOS mostly produces oligomenorrhea (fewer than nine menstrual periods in a year) or amenorrhea (no menstrual periods for three or more consecutive months), but other types of menstrual disorders may also occur.
Environmental law is a law that was passed in the 1970, and is known as the National Environmental Policy Act. This law was passed along with another environmental act known as the Environmental Quality Improvement Act.The purpose of these laws was to protect the environment from public or private actions that could cause damage.nvironmental law is a combination of three things: the first is the statute that is passed through Congress.
The Clean Air Act was the first major environmental law in the United States to include a provision for citizen suits. Numerous state and local governments have enacted similar legislation, either implementing federal programs or filling in locally important gaps in federal programs.n the Clean Air Act Extension of 1970, Congress greatly expanded the federal mandate by requiring comprehensive federal and state regulations for both industrial and mobile sources. The law established four new regulatory programs: 1  National Ambient Air Quality Standards (NAAQS).